550739213 has 2 divisors, whose sum is σ = 550739214. Its totient is φ = 550739212.

The previous prime is 550739159. The next prime is 550739219. The reversal of 550739213 is 312937055.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384277609 + 166461604 = 19603^2 + 12902^2 .

It is a cyclic number.

It is not a de Polignac number, because 550739213 - 2⁸ = 550738957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550739219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275369606 + 275369607.

It is an arithmetic number, because the mean of its divisors is an integer number (275369607).

Almost surely, 2^550739213 is an apocalyptic number.

It is an amenable number.

550739213 is a deficient number, since it is larger than the sum of its proper divisors (1).

550739213 is an equidigital number, since it uses as much as digits as its factorization.

550739213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 550739213 is about 23467.8335813087. The cubic root of 550739213 is about 819.6881686610.

The spelling of 550739213 in words is "five hundred fifty million, seven hundred thirty-nine thousand, two hundred thirteen".